Volume 19, Number 2—February 2013
Dispatch
Ebola Virus Antibodies in Fruit Bats, Bangladesh
Table 1
Ebola virus serologic assay results for bats, Bangladesh, 2010–2011*
Year, specimen no. | Age of bat | Sex of bat | Species or control | ELISA OD (endpoint titration) |
Western blot |
||||
---|---|---|---|---|---|---|---|---|---|
R + Z | R | Z | R | Z | |||||
2010 | |||||||||
Rab691/d0 | ND | ND | Negative control | 0.138 | 0.116 | 0.097 | – | – | |
April 2010–001 | A | F | Negative control (Rousettus leschenaultii) | 0.215 | 0.117 (50) | 0.058 (50) | – | – | |
April 2010–002 | A | F | Negative control (R. leschenaultii) | 0.092 | 0.096 | 0.059 | – | – | |
Rab691/EboV-N | ND | ND | Positive control | 2.303 | 1.72 | 1.23 | ++ | ++ | |
Monkey/EboV | ND | ND | Positive control | 1.753 | 0.676 | 0.445 | NT | NT | |
April 2010–042 | A | M | R. leschenaultii | 1.512 | 0.511 (400) | 0.07 (50) | + | + | |
April 2010–057 | A | M | R. leschenaultii | 0.684 | 0.072 (50) | 0.477 (800) | + | ++ | |
66 additional negative |
ND |
ND |
R. leschenaultii |
<0.60 |
– |
– |
NT |
NT |
|
2011 | |||||||||
Rab691/d0 | ND | ND | Negative control | 0.165 | 0.116 | 0.145 | – | – | |
SB0311–115 | A | F | Negative control (Megaderma lyra) | 0.515 | 0.074 | 0.083 | – | – | |
SB0311–117 | A | F | Negative control (M. lyra) | 0.775 | 0.075 | 0.072 | – | – | |
Rab691/ REboV-N | ND | ND | Positive control | 1.598 | 1.123 | 1.106 | ++ | ++ | |
SB0311–001 | A | M | R. leschenaultii | 0.494 | 0.213 (50) | 0.538 (100) | + | + | |
SB0311–004 | A | M | R. leschenaultii | 0.557 | 0.152 (50) | 0.497 (100) | + | + | |
SB0311–059 | A | M | R. leschenaultii | 0.757 | 0.079 (50) | 0.816 (400) | – | ++ | |
SB0311–016 | A | F | R. leschenaultii | 0.542 | 0.182 (100) | 0.367 (400) | NT | NT | |
67 additional negative | ND | ND | R. leschenaultii | <0.60 | NT | NT | NT | NT | |
55 additional negative | ND | ND | M. lyra | <0.775 | NT | NT | NT | NT | |
75 negative | ND | ND | Cynopterus sp. | <0.595 | NT | NT | NT | NT | |
1 negative | A | M | Macroglossus sobrinus | <0.256 | NT | NT | NT | NT |
*Values in boldface are positive results. OD, optical density; R + Z, ELISA using a 1:1 mixture of recombinant nucleoproteins of Reston and Zaire Ebola viruses; R, Reston Ebola virus ELISA; Z, Zaire Ebola virus ELISA; ND, not determined;; A, adult; –, negative; ++, strongly positive; NT, not tested; +, positive.